2.0T Juddering

[Sean-2.2Direct]

Hi Guys

Just a quick question you maybe able to help me with

A friend of mine in work is looking at buying a 2.0t Saab he says when he revs it and releases the Accelerator to let the revs drop back down it judders as the revs drop any ideas what the problem could be?

[Deztroyer]

Sean - would be worth while him doing the brake pedal test for pcodes
no doubt same as the vx system so codes would be the same - sounds like a pipe somewhere is blocked or clogged